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Fluoborate and crystal containing rare earth ions, growing method and application of crystal

A rare earth ion, fluoroborate technology, used in crystal growth, single crystal growth, single crystal growth and other directions

Inactive Publication Date: 2009-08-26
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, rare earth-containing fluoroborates (Ca 1-x Re x ) 5 (BO 3 ) 3 f 1-5x o 5x (0<x<0.2) and its application as a nonlinear optical crystal have not been reported

Method used

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  • Fluoborate and crystal containing rare earth ions, growing method and application of crystal

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1: prepare powdery (Ca 0.84 sc 0.16 ) 5 (BO 3 ) 3 f 0.2 o 0.8 compound.

[0035] 15.88g CaCO 3 , 2.21gSc 2 o 3 , 7.42gH 3 BO 3 and 0.31gCaF 2 After mixing evenly, put it into a platinum crucible with an opening of Φ40×40mm, put the crucible into a muffle furnace (heating electric furnace), sinter it at a constant temperature of 1100°C for 48 hours, and obtain (Ca 0.84 sc 0.16 ) 5 (BO 3 ) 3 f 0.2 o 0.8 compound.

Embodiment 2

[0036] Embodiment 2: prepare powdery (Ca 0.98 Nd 0.02 ) 5 (BO 3 ) 3 f 0.9 o 0.1 compound.

[0037] 17.81gCaCO 3 , 0.67gNd 2 o 3 , 7.42gH 3 BO 3 and 1.41gCaF 2 After mixing evenly, put it into a platinum crucible with an opening of Φ40×40, put the crucible into a muffle furnace (heating electric furnace), sinter it at a constant temperature of 1050°C for 72 hours, and obtain (Ca 0.98 Nd 0.02 ) 5 (BO 3 ) 3 f 0.9 o 0.1 Compound powder, compound (Ca 0.98 Nd 0.02 ) 5 (BO 3 ) 3 f 0.9 o 0.1 Has luminous properties.

Embodiment 3

[0038] Embodiment 3: adopt B 2 o 3 -Li 2 O-CaF 2 -Kyrophyll growth with LiF flux (Ca 0.96 Y 0.04 ) 5 (BO 3 ) 3 f 0.8 o 0.2 crystals.

[0039] Combine 72.24gCaO, 65.14gH 3 BO 3 , 17.57gCaF 2 , 22.87gLi 2 CO 3 , 110.25gLiF14.75gY 2 o 3 , mixed and ground evenly, melted in a Φ60×60mm platinum crucible in a muffle furnace at 1000°C, put the crucible into a crystal growth furnace (self-made resistance wire heating furnace), rapidly raised the temperature to 1000°C, stirred for 1 day, and quickly Lower the temperature to 800°C, introduce the seed crystal so that the seed crystal is 0.5cm below the melt surface, the rotation speed of the seed crystal rod is 30rpm, and cool down at a rate of 0.5°C per day (the temperature control device is Al-708P programmable automatic temperature controller ), grow for 2 weeks, after the crystal growth is over, lift the crystal from the melt surface, anneal at a rate of 40°C per hour and cool down to room temperature, and obtain (Ca...

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Abstract

The invention relates to fluoborate and a crystal containing rare earth ions, and preparation method thereof. The chemical formula of the fluoborate is (Ca1-xRex)5(BO3)3F1-5xO5x, wherein x is more than 0 and less than 0.2; Re is Sc, Y or the rare earth ions; and the rare earth ions are La, Ce, Pr, Nd, Sm , Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, or Lu, or mixture of the rare earth ions. A flux method is adopted to grow a fluoborate crystal with high quality and large size; the crystal meets the requirement of blue green light wave-band laser frequency conversion, and can be used for manufacturing nonlinear optical devices; a monocrystal doped with rare-earth laser activated ions can manufacture laser-nonlinear multi-functional optical devices; and lasers manufactured by the crystal can be used in the fields such as spectroscopy, biomedicine, military, and the like.

Description

technical field [0001] The invention relates to the field of artificial crystals and crystal growth in the technical field of optoelectronic functions, in particular to a fluoroborate containing rare earth ions, a crystal and a growth method and application of the crystal. Background technique [0002] With the development of laser technology, lasers with different wavelengths are required in practical applications. Frequency doubling is a method often used in laser technology to change the output wavelength of laser beams. It usually uses a special nonlinear optical crystal placed in front of the laser beam to change the output wavelength of the laser beam. At present, the nonlinear optical crystal materials used in the blue-green light band mainly include KTP (KTiOPO 4 ), BBO (BaB 2 o 4 ) and LBO (LiB 3 o 5 ) crystals, etc. [0003] In addition, for a long time, people hope to obtain crystal materials with composite functions, which can combine laser performance and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/10C30B9/12C30B11/00H01S3/16
Inventor 李如康夏明军
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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